行业组件数据 · 2026

端部轴颈

End journals are precision-machined cylindrical components that support and rotate roll shells in industrial rolling equipment.

技术定义与适配语境
典型 端部轴颈 会按材料、尺寸公差、适配关系和失效风险在 机械和设备制造 中评估。

End journals are critical rotating components in roll shells/cylinders used in rolling mills and similar machinery. They are precisely machined cylindrical shafts located at both ends of the roll shell, designed to fit into bearing housings and transmit rotational force from drive systems. These components provide structural support, maintain alignment, and ensure smooth rotation under heavy loads during metal forming, paper production, or plastic extrusion processes.

组件规格

定义
End journals are critical rotating components in roll shells/cylinders used in rolling mills and similar machinery. They are precisely machined cylindrical shafts located at both ends of the roll shell, designed to fit into bearing housings and transmit rotational force from drive systems. These components provide structural support, maintain alignment, and ensure smooth rotation under heavy loads during metal forming, paper production, or plastic extrusion processes.
工作原理
End journals function as rotating shafts that transfer torque from drive mechanisms (motors, gearboxes) to the roll shell while supporting radial and axial loads through bearing assemblies. They maintain precise concentricity with the roll body to ensure uniform material processing and prevent vibration or deflection during operation.
材料
Typically forged alloy steel (AISI 41404340) or tool steel (D2H13) with surface hardening (induction hardeningnitriding) to 45-60 HRC. Corrosion-resistant variants use stainless steel (17-4PH316L) for specific applications.
Length Range
150-800 mm
Hardness Depth
2-5 mm
Surface Finish
Ra 0.4-0.8 μm
Runout Tolerance
≤0.02 mm
Diameter Tolerance
±0.01 mm
标准
ISO 286-2DIN 748-3ASTM A29

行业分类与别名

端部轴颈 的常用贸易名称、技术标识和检索关键词。

上级产品

该组件会出现在以下整机或工业产品中。

FMEA · 风险与缓解

诱因 → 失效模式 → 工程缓解

Inadequate lubrication or contaminated lubricant->Bearing seizure and journal scoring->Implement automated lubrication systems with filtration; conduct weekly oil analysis
Improper installation or misalignment->Excessive vibration and premature bearing wear->Use laser alignment tools during installation; verify runout <0.02 mm

工业生态与工程逻辑

0
Fatigue cracking from cyclic loading
1
Bearing seizure due to lubrication failure
2
Misalignment causing vibration and reduced product quality

合规与检测

tolerance
Geometric tolerances per ISO 1101:2017; diameter tolerance IT6-IT7
test method
Ultrasonic testing for internal defects; magnetic particle inspection for surface cracks; coordinate measuring machine verification

制造该组件的工厂

来自 CNFX 组件能力表的相关制造商资料。

制造商列表用于前期研究和供应商能力理解,不代表认证、排名或交易担保。

采购评估维度

不是客户评论,也不是实时热度。以下维度用于前期 RFQ 准备和供应商评估。

技术文档
4/5
制造能力
4/5
可检验性
5/5
供应商透明度
3/5

这些分值是采购评估维度示例,不代表真实客户评分、具体国家买家反馈或实时询盘。

相关组件

常见问题

What is the primary function of end journals in roll shells?

End journals provide rotational support and torque transmission between drive systems and roll shells while maintaining precise alignment under operational loads.

How often should end journals be inspected for wear?

Inspect every 3-6 months depending on operating hours; measure diameter, surface finish, and runout to detect wear before catastrophic failure occurs.

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CNFX Industrial Component Index · 机械和设备制造

数据基础

CNFX 制造商资料、技术分类、公开产品信息和持续合理性检查。

初步技术归类
本页用于结构化准备研究、RFQ 和供应商评估,不替代买方自己的供应商资质审查、标准核验和技术批准。

请求制造能力信息: 端部轴颈

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URN:CNFX:ME:UNIT:END_JOURNALS